Hi Hagen! Sorry it took so long to zero in on the fretting issue. A good “head-to-toe” assessment should uncover anything significantly prohibitive in the first five minutes, and not after I’ve blathered on about unrelated topics in picking for twenty minutes. That’s my fault!
Honestly, I don’t know how much finger “action height” has to do with this. My own fingers go way higher than a half inch all the time. You really can’t see this from a wide shot in our instructional stuff, where the guitar body is facing the camera, but it’s definitely true. It looks ugly sometimes but to be honest I can’t really identify any way that it affects my actual playing. If I need to go faster, the fingers still try to fly away, but they just don’t get as far in the smaller amount of time. If this issue is somehow limiting my speed or making things more difficult, it’s sort of academic because I can’t tell.
How much time have you spent over the years trying to synchronize long fretted and picking sequences of any kind, and trying to go fast while doing that? If you didn’t go through an “Yngwie six-note pattern” phase at some point, this could simply be an issue of never having done that kind of work. Again, a question I feel like we should have covered in our talk as a kind of history taking. And I think we should also rule out other potential issues like injury, arthritis, and so on, just to make sure.
But in general, I think the way forward is doing more of what we discussed, i.e. experimenting with as many types of coordinated left hand ideas as possible to find ones that work and sound best immediately. This can (and should) include legato, and strumming / rhythm patterns too. Anything that involves two-handed coordination offers an opportunity to get better at something. You essentially put together a basket of things that sound the best right now and are fun to play and as musical as possible. And then you jam those with an emphasis on evenness and speed.
As you do this, you’re keeping an eye out for any moment that feels fast, fluid, and where the left hand notes are evenly spaced in time. Any time you have an “a ha” moment like that, make a mental note of what phrase that is, what it sounds like, and what it feels like. You can come back to these phrases again to see if you can recreate the smoothness. Shoot to increase the frequency of these little moments over time, while adding more stuff to the basket to gradually expand the circle of “good sounding” stuff. In terms of the way forward and being as practical as we can, that’s how I’d tackle this.